// do the fallback, reallocate the buffer if necessary
// need to pass destination buffer info (size, current position and estimation of rest of the conversion)
NS_IMETHODIMP
nsSaveAsCharset::HandleFallBack(uint32_t character, char **outString, int32_t *bufferLength,
int32_t *currentPos, int32_t estimatedLength)
{
NS_ENSURE_ARG_POINTER(outString);
NS_ENSURE_ARG_POINTER(bufferLength);
NS_ENSURE_ARG_POINTER(currentPos);
char fallbackStr[256];
nsresult rv = DoConversionFallBack(character, fallbackStr, 256);
if (NS_SUCCEEDED(rv)) {
int32_t tempLen = (int32_t) strlen(fallbackStr);
// reallocate if the buffer is not large enough
if ((tempLen + estimatedLength) >= (*bufferLength - *currentPos)) {
int32_t addLength = tempLen + RESERVE_FALLBACK_BYTES;
// + 1 is for the terminating NUL, don't add that to bufferLength
char *temp = (char *) PR_Realloc(*outString, *bufferLength + addLength + 1);
if (temp) {
// adjust length/pointer after realloc
*bufferLength += addLength;
*outString = temp;
} else {
*outString = nullptr;
*bufferLength = 0;
return NS_ERROR_OUT_OF_MEMORY;
}
}
memcpy((*outString + *currentPos), fallbackStr, tempLen);
*currentPos += tempLen;
}
return rv;
}
// do the fallback, reallocate the buffer if necessary
// need to pass destination buffer info (size, current position and estimation of rest of the conversion)
NS_IMETHODIMP
nsSaveAsCharset::HandleFallBack(PRUint32 character, char **outString, PRInt32 *bufferLength,
PRInt32 *currentPos, PRInt32 estimatedLength)
{
if((nullptr == outString ) || (nullptr == bufferLength) ||(nullptr ==currentPos))
return NS_ERROR_NULL_POINTER;
char fallbackStr[256];
nsresult rv = DoConversionFallBack(character, fallbackStr, 256);
if (NS_SUCCEEDED(rv)) {
PRInt32 tempLen = (PRInt32) PL_strlen(fallbackStr);
// reallocate if the buffer is not large enough
if ((tempLen + estimatedLength) >= (*bufferLength - *currentPos)) {
char *temp = (char *) PR_Realloc(*outString, *bufferLength + tempLen);
if (NULL != temp) {
// adjust length/pointer after realloc
*bufferLength += tempLen;
*outString = temp;
} else {
*outString = NULL;
*bufferLength =0;
return NS_ERROR_OUT_OF_MEMORY;
}
}
memcpy((*outString + *currentPos), fallbackStr, tempLen);
*currentPos += tempLen;
}
return rv;
}
